Nobbs, Jack
McGraw-Hill, 1983
Buku Teks
Menz, Fredric C.
Harper Collins College Publisers , 1993
Buku Teks
Nobbs, Jack
McGraw-Hill, 1975
Buku Teks
Nobbs, Jack
McGraw-Hill, 1975
Buku Teks
Martin, Stephen, 1961-, author
Blacwell Publisher, 2002
Buku Teks